Theory of transition times: Catalysis at rotating disk electrodes

Daniel Alberto Scherson*, Philip N. Ross

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


An exact solution to the problem of convective diffusion to a rotating disk electrode in the limit of high Schmidt numbers, with a prescribed initial profile and current step conditions at the surface is presented. Based on this solution a current density-transition time relationship is established which, in the limit, reduces to a previously proposed expression that accounts for experiemntally observed deviations from the Sand equation. Applications of this theory in connection with the determination of rate parameters for electroactive species undergoing a catalytic reaction at the electrode surface are discussed.

Original languageEnglish
Pages (from-to)209-217
Number of pages9
JournalJournal of Electroanalytical Chemistry
Issue number2
Publication statusPublished - 1981 Mar 10
Externally publishedYes

ASJC Scopus subject areas

  • Analytical Chemistry
  • Chemical Engineering(all)
  • Electrochemistry


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